William Shatner

If you want to do some comparing, here are a few more:

Buster Crabbe

Gil Gerrard (this guy is barely a blip at Google under his own name. Definitely an under-acheiver once his superhero program went away).

George Reeves

Johnny Weissmuller was Tarzan in the Saturday afternoon movies when I was a kid. I never understood why they tried to remake them.

A bonus: My mother's idea of a hunky heart-throb still looks pretty good by today's standards-- Victor Mature

SRS